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Finding the Fourth Proportional to 449,353,326.60, 674,029,989.90 and 276,268,897.80

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Solution

The fourth proportional to 449,353,326.60, 674,029,989.90 and 276,268,897.80 is: 414,403,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,353,326.60 : 674,029,989.90 = 276,268,897.80 : x
  2. Step 2: Convert to fraction form
    449,353,326.60/674,029,989.90 = 276,268,897.80/x
  3. Step 3: Cross multiply
    449,353,326.60x = 674,029,989.90 × 276,268,897.80
  4. Step 4: Simplify right side
    449,353,326.60x = 186,213,522,393,818,144
  5. Step 5: Solve for x
    x = 186,213,522,393,818,144/449,353,326.60
  6. Step 6: Final answer
    x = 414,403,346.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.